Joint self-sealing device for waterproofing immersed tube tunnel
A technology of self-sealing and immersed tube method, which is applied in the direction of pipes/pipe joints/fittings, sleeve/socket connections, passing components, etc., which can solve problems such as sealing failure and deformation of sealing materials, and achieve the effect of improving sealing reliability
Active Publication Date: 2017-02-15
郑州赛诺建材有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide an immersed tube method tunnel waterproof joint sealing in the prior art, which mainly adopts forced sealing, which requires very high performance of the sealing material and can easily lead to sealing failure. Joint self-sealing device, the device is a self-sealing structure, with the increase of water pressure, the sealing material will automatically deform and increase, and the sealing specific pressure will be re-established, and the sealing reliability will be greatly improved
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Embodiment 1
[0013] Embodiment 1: A joint self-sealing device for tunnel waterproofing by immersed tube method, see figure 2 , including immersed tube 1 2 and immersed tube 2 3, when in use, the immersed tube 1 is set on the left end of the pipe, similar to the socket, and the immersed tube 2 3 is set on the right end of the pipe, similar to the socket, and the immersed tube 2 3 is set on one end At the end of immersed tube one 1, part of immersed tube two 3 goes deep into the inner cavity of immersed tube one 2, and a card table one 9 is arranged on the inner end circumference of the immersed tube two 3, and the card table one 9 just matches Stuck in the inner cavity of the immersed tube, a card platform two is arranged at the corresponding position of the immersed tube two and the outer port of the immersed tube one, the card platform two is lower than the card platform one, and the card platform one 9 and the card platform two 10 An accommodation cavity is formed between them, and a se...
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The invention discloses a joint self-sealing device for waterproofing an immersed tube tunnel, and belongs to a tunnel waterproofing technology. The joint self-sealing device comprise an immersed tube I and an immersed tube II, wherein the immersed tube I is arranged in the left end of a pipeline in a sleeving way to act as a bell; the immersed tube II is arranged in the right end of the pipeline in a sleeving way to act as a spigot; one end of the immersed tube II is arranged in one end part of the immersed tube I in a sleeving way; a clamping boss I is circumferentially arranged at the inner end part of the immersed tube II; a clamping boss II is arranged on the immersed tube II and is located in a position corresponding to the outer end opening of the immersed tube I; an accommodating cavity is formed between the clamping boss I and the clamping boss II; a seal ring is circumferentially arranged between the immersed tube I and the immersed tube II and is close to the clamping boss I of the immersed tube II; the seal ring is divided into two areas from inside to outside, namely a hard rubber area and a soft rubber area; the hard rubber area is a sealing area; and the soft rubber area is a positioning area. The joint self-sealing device is designed to be a self-sealing mechanism; and as the water pressure increases, a sealing material can automatically deform and enlarge to rebuild the specific pressure of sealing, so that the sealing effect is better.
Description
technical field [0001] The invention belongs to tunnel waterproofing technology, in particular to a joint self-sealing device for tunnel waterproofing by immersed tube method. Background technique [0002] The joint sealing of the tunnel waterproofing by the immersed tube method originally adopted the double waterproofing technology of GINA strength sealing and Ω self-sealing, among which the GINA forced sealing technology is mainly used to achieve sealing, such as figure 1 As shown, the original structure is complicated, and the forced sealing structure is mainly adopted, and the sealing is realized by deforming the sealing material by pre-tightening extrusion. The performance requirements of the sealing material are very high in order to achieve durability. Once the plastic deformation of the sealing material is large, later If the rebound performance is reduced, the seal may fail. Contents of the invention [0003] The purpose of the present invention is to provide an ...
Claims
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IPC IPC(8): F16L21/035
CPCF16L21/035
Inventor 王福州张茂亮沈坚杨艳娟
Owner 郑州赛诺建材有限公司